CVSS: 8.1EPSS: 0%CPEs: 3EXPL: 0CVE-2023-41333 – Bypass of namespace restrictions in CiliumNetworkPolicy
https://notcve.org/view.php?id=CVE-2023-41333
26 Sep 2023 — Cilium is a networking, observability, and security solution with an eBPF-based dataplane. An attacker with the ability to create or modify CiliumNetworkPolicy objects in a particular namespace is able to affect traffic on an entire Cilium cluster, potentially bypassing policy enforcement in other namespaces. By using a crafted `endpointSelector` that uses the `DoesNotExist` operator on the `reserved:init` label, the attacker can create policies that bypass namespace restrictions and affect the entire Ciliu... • https://docs.cilium.io/en/stable/security/threat-model/#kubernetes-api-server-attacker • CWE-306: Missing Authentication for Critical Function •
CVSS: 9.0EPSS: 0%CPEs: 3EXPL: 1CVE-2023-39347 – Cilium NetworkPolicy bypass via pod labels
https://notcve.org/view.php?id=CVE-2023-39347
26 Sep 2023 — Cilium is a networking, observability, and security solution with an eBPF-based dataplane. An attacker with the ability to update pod labels can cause Cilium to apply incorrect network policies. This issue arises due to the fact that on pod update, Cilium incorrectly uses user-provided pod labels to select the policies which apply to the workload in question. This can affect Cilium network policies that use the namespace, service account or cluster constructs to restrict traffic, Cilium clusterwide network ... • https://docs.cilium.io/en/latest/security/threat-model/#kubernetes-api-server-attacker • CWE-345: Insufficient Verification of Data Authenticity •